﻿using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;

namespace MathTest
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void button1_Click(object sender, EventArgs e)
        {
            int s = 0;
            int i = 1;
            while (i <= 999)
            {
                s = s + i * i;
                i = i + 2;
            }

            MessageBox.Show(s.ToString());

        }
    }
}
